| Alucra to Octeville | 2,049.17 mi (3,297.82 km) |
| Alucra to Oignies | 1,849.98 mi (2,977.25 km) |
| Alucra to Oissel | 1,925.44 mi (3,098.70 km) |
| Alucra to Olivet | 1,882.52 mi (3,029.62 km) |
| Alucra to Ollioules | 1,697.65 mi (2,732.11 km) |
| Alucra to Olonne-sur-Mer | 2,055.43 mi (3,307.90 km) |
| Alucra to Oloron-Sainte-Marie | 2,020.37 mi (3,251.48 km) |
| Alucra to Onet Village | 1,853.06 mi (2,982.21 km) |
| Alucra to Onnaing | 1,822.83 mi (2,933.56 km) |
| Alucra to Orange | 1,744.61 mi (2,807.67 km) |
| Alucra to Orchies | 1,839.13 mi (2,959.80 km) |
| Alucra to Orleans | 1,882.24 mi (3,029.17 km) |
| Alucra to Orly | 1,863.49 mi (2,998.99 km) |
| Alucra to Ormesson-sur-Marne | 1,857.11 mi (2,988.73 km) |
| Alucra to Orsay | 1,872.58 mi (3,013.63 km) |
